Instruction/ maintenance manual of the product 502399 Sennheiser
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Instruction m anual HMEC 26.
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1 Safety instructions y Please read these inst ructions carefully and completely before us ing the headset. y Make these instructions easi ly accessible to al l users at all times. y Always include these instru ctions when passing the headset on to third parti es.
2 y Only replace those parts of the headset whose replacement is d escribed in th is manual. All other p a r t s o f t h e h e a d s e t m u s t b e r e p l a c e d b y y o u r Sennheiser agent. y Protect the headset fr om hu midity. Use only a slightly damp cloth to clean the headset.
3 The HMEC 26 headset The HMEC 26 headset with NoiseGard™ active noise compensation features dynami c, closed headphones. The noise-compensating condenser m icrophone ensures excellent speech transmission ev en in noisy environments. Designed for use in aircraft cockpits.
4 y ETSO approval C57a/C58a Delivery includes y 1 HMEC 26 headset y 1 cable clip y 1 wind and pop screen y 1 instruction manual y 1 carry bag y 1 EASA Form 1 Operation T urning t he microphone boom T h e m i c r o p h o n e b o o m c a n b e r o t a t e d .
5 Putting on the headset When putting on the headse t, the patented two-piece headband adjust s au tomatically. Positioning the microphone Bend the flexible microphone boom so that the micro- p h o n e i s p l a c e d a t t h e c o r n e r o f t h e m o u t h .
6 Flipping away one earcu p The headset features a “fl ip-away” earcup for single- sided listening. Adjusting the volum e directly on the audio system Connect the headset to the co rresponding sockets of your audio system. Ad just the volume directl y on the audio system.
7 Adjusting the microphone sensitivity The microphone sensitivity has been factory pre-set to 80 mV/Pa as per RTCA DO-214. You can change the microphone sensitivity b y turning a small scr ewdriver in the direction of the arrow.
8 The operating controls of the HMEC 26 Operating control I Volume co ntrols LED NoiseGard™ ON/OFF switch Mono/stereo switch BOOM switch L/R 3.
9 Operating con trol II LED NoiseGard™ ON/OFF switch Headset with operating control II Operating element HMEC 26-CP x x HMEC 26-KP x x HMEC 26-NP x x .
10 Using the headset Switching N oiseGard™ on/o ff The NoiseGard™ ON/OFF switch allow s you to swit ch the NoiseGard™ active noise compe nsation on or off.
11 Switching between mo no and stereo mode The mono/stere o switch allows you to switch between mono ( ) and stereo ( ) mode, depending on the audio system. 왘 Set the mono/stereo switch to the desired position: mono ( ) or stereo ( ).
12 The operating time with batt eries/rechargeable batteries is approx. 60 hours. With NoiseGard™ switched on (see page 10), the LED provides information on the remaining battery/ rechargeable battery capacity. LED ligh ts up yell ow: The batte ry capacit y is sufficient.
13 Switching the TalkThrough function on/off (HMEC 26-T only) The headset provides excell ent attenuation of ambient noise. In order to allow you to commu nicate undisturbed with your surroundings while wear ing the headset, the HMEC 26-T features a Ta lkThrough function.
14 Connecting a mobile telephone The 2.5 mm jack socket allows you to connect a mobile telephone. For this purpose, the NoiseGard™ active noise compensation must be swit ched on and the microphone connector must be connected to the aircraft radio/audio.
15 Connecting an additional audio pl ayer The 3.5 mm jack socket allows you to connect and listen to an audio player (not supplied) through the headset. For this purpose, the Noise Gard™ acti ve noise compensation must be switched on. 왘 Connect the audio cable to the 3.
16 Care and maintenance Cleaning the headset Use a sof t, slightly damp cloth to clean the headset from time to time. If the headset is very dirty, use a cloth dampened with mild, soa py water. Do not u se any solvents or cleansing agents. Replacing the earpads For reasons of hygiene, the earpads should be rep laced from time to time.
17 Accessories and spare part s By changing the cables, you ca n simply retrofit different operating controls (see page 8 and 9) or connectors (see page 19) to your headse t. y Cable -CP Cat. No. 5008 52 y Cable -V-CP Cat. No. 5008 46 y Cable -B-CP Cat.
18 y Cable clip MZQ 2002 Cat. No. 044740 y Cable clip HZC 08 Cat. No. 525787 Cable clips HZC 08 MZQ 2002 (for round or flat cable) (for round cable only).
19 Product variants Model Cat. No. Part Number HMEC 26* 502397 026-35 HMEC 26-T* 502404 026-C5 HMEC 26-CP 502402 026-35-999-3211 x x x x HMEC 26-V-CP 502405 026-35-99.
20 Specifications Headphones Transducer principle dynamic, closed Ear coupling supra-aural Frequency response 20–14,000 Hz Impedance 600 Ω mono/1.2 00 Ω stereo Characte ristic SP L 92 dB SPL at 1 kHz, 1 mW, mon o 95 dB SPL at 1 kHz, 1 V Max.
21 General da ta Temperature range operation: –15 °C to +55 °C storage: –55 °C to +70 °C Weight without cable approx. 210 g Power supply for 2x 1.5 V AA alkaline battery NoiseGard ™ (IEC LR 6) or 2x 1.2 V AA rechargeable battery (I EC LR 6) with approx.
22 HMEC 26-CP , -V-CP , -B-CP , -BV-CP HMEC 26-NP HMEC 26-V-RP Solder side 1 2 3 Audio Hi Audio Lo / DC– Microphone Hi 4 5 1 2 3 4 5 Microphone Lo NoiseGard TM (DC+) Solder side 1 Audio Hi 2 Audio L.
23 HMEC 26-KP, -V-KP, -BV-KP, -B-K, -BV-K HMEC 26-KP 1 Audio Hi 1 NoiseGard™ (DC+) 2 not assigned 2 Microphone Hi 3 Audio Lo / DC– 3 Microphone Lo HMEC 26-V-KP / -BV-KP 1 Audio Hi l eft 1 NoiseGar.
24 Manufacturer Declarations W arranty Sennheiser electronic GmbH & Co. KG gives a warranty of 5 years on this product. For the current warr anty conditions, please visi t our web site at www.
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Sennheiser electronic GmbH & Co. KG Printed in Germany Am Labor 1, 30900 W edemark, Germany Publ. 01/09 www.sennheiser.com 523983/A01.
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If you already are a holder of Sennheiser 502399, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Sennheiser 502399.
However, one of the most important roles played by the user manual is to help in solving problems with Sennheiser 502399. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Sennheiser 502399 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
